HIGH
Memory leak in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted SIP packets to UDP port 5060, aka Bug ID CSCtj04672
Published Oct 3, 2011
7.5
HIGHCVSS 3.0
EPSS 1.80%
Description
Memory leak in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted SIP packets to UDP port 5060, aka Bug ID CSCtj04672.
Affected products
No data.
Configuration 2
OR
- 12.1
- 12.1e
- 12.2
- 12.2b
- 12.2bc
- 12.2bx
- 12.2cx
- 12.2cz
- 12.2ew
- 12.2ewa
- 12.2ex
- 12.2ey
- 12.2ez
- 12.2fx
- 12.2fy
- 12.2fz
- 12.2ira
- 12.2irb
- 12.2irc
- 12.2ird
- 12.2ire
- 12.2irf
- 12.2ixa
- 12.2ixb
- 12.2ixc
- 12.2ixd
- 12.2ixe
- 12.2ixf
- 12.2ixg
- 12.2ixh
- 12.2mc
- 12.2mra
- 12.2mrb
- 12.2s
- 12.2sb
- 12.2sbc
- 12.2sca
- 12.2scb
- 12.2scc
- 12.2scd
- 12.2sce
- 12.2se
- 12.2sea
- 12.2seb
- 12.2sec
- 12.2sed
- 12.2see
- 12.2sef
- 12.2seg
- 12.2sg
- 12.2sga
- 12.2sm
- 12.2sq
- 12.2sra
- 12.2srb
- 12.2src
- 12.2srd
- 12.2sre
- 12.2su
- 12.2sv
- 12.2sw
- 12.2sx
- 12.2sxa
- 12.2sxb
- 12.2sxd
- 12.2sxe
- 12.2sxf
- 12.2sxh
- 12.2sxi
- 12.2sxj
- 12.2sy
- 12.2sz
- 12.2t
- 12.2tpc
- 12.2xb
- 12.2xna
- 12.2xnb
- 12.2xnc
- 12.2xne
- 12.2xnf
- 12.2xo
- 12.2ya
- 12.2yf
- 12.2yg
- 12.2yh
- 12.2yj
- 12.2yl
- 12.2ym
- 12.2yn
- 12.2yq
- 12.2yr
- 12.2ys
- 12.2yt
- 12.2yu
- 12.2yv
- 12.2yw
- 12.2yx
- 12.2yy
- 12.2yz
- 12.2za
- 12.2zb
- 12.2ze
- 12.2zf
- 12.2zh
- 12.2zl
- 12.2zu
- 12.2zx
- 12.2zy
- 12.2zya
- 12.3
- 12.3b
- 12.3bc
- 12.3bw
- 12.3jk
- 12.3t
- 12.3tpc
- 12.3xa
- 12.3xb
- 12.3xc
- 12.3xd
- 12.3xe
- 12.3xf
- 12.3xg
- 12.3xi
- 12.3xj
- 12.3xk
- 12.3xl
- 12.3xq
- 12.3xr
- 12.3xs
- 12.3xu
- 12.3xw
- 12.3xx
- 12.3xz
- 12.3ya
- 12.3yj
- 12.3yq
- 12.3ys
- 12.3yt
- 12.3yu
- 12.3yx
- 12.3yz
- 12.3za
- 12.4
- 12.4gc
- 12.4jx
- 12.4md
- 12.4mda
- 12.4mdb
- 12.4mr
- 12.4mra
- 12.4mrb
- 12.4t
- 12.4xa
- 12.4xb
- 12.4xd
- 12.4xf
- 12.4xg
- 12.4xl
- 12.4xm
- 12.4xn
- 12.4xp
- 12.4xq
- 12.4xr
- 12.4xt
- 12.4xw
- 12.4xy
- 12.4xz
- 12.4ya
- 12.4yb
- 12.4yd
- 12.4ye
- 12.4yg
- 15.0m
- 15.0mr
- 15.0mra
- 15.0s
- 15.0sa
- 15.0sg
- 15.0xa
- 15.0xo
- 15.1ey
- 15.1gc
- 15.1m
- 15.1s
- 15.1t
- 15.1xb
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.80% 0.01804
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01804
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.80% (0.01804) | 77.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.80% (0.01804) | 75.63th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.35% (0.00353) | 55.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.73th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.15% (0.00155) | 51.19th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.14% (0.00143) | 49.02th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.13% (0.00129) | 46.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00181) | 53.60th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
Weaknesses (1)
References (2)
- http://tools.cisco.com/security/center/viewAlert.x?alertId=24120 x_refsource_CONFIRMVendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4d.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/viewAlert.x?alertId=24120 | x_refsource_CONFIRMVendor Advisory | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4d.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Oct 3, 2011
Updated Sep 17, 2024
Reserved Aug 29, 2011
Link CVE-2011-3280
CISA Vulnrichment
Updated n/a